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Proceedings Paper

Use Of Matrix Isolation Fourier Transform Infrared (FTIR) In Gas Chromatographic Detection
Author(s): A. A. Garrison; D. M. Hembree Jr.; R. A. Yokley; R. A. Crocombe; G. Mamantov; E. L. Wehry
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Paper Abstract

Earlier work in this laboratory has shown matrix isolation Fourier transform infrared spectrometry (MI FTIR) to possess several advantages over conventional sampling techniques for the qualitative analysis of complex samples. The ability to obtain very sharp spectra using MI makes it possible to distinguish between very similar compounds, including isomers, present in a sample. Instrumentation to couple capillary column gas chromatography (GC) to MI FTIR has been developed as an alternative to on-the-fly gas-phase GC FTIR measurements. This technique allows leisurely study of chromatographic fractions at medium resolution (1 cm-1). A gold-plated disk is cooled to 15K with a closed-cycle helium refrigerator and used to collect compounds eluting from the GC. Nitrogen is used as both GC carrier gas and matrix material. Beam condensing optics and KRS-5 rods are used to reflect the IR beam from the individual sample deposition surfaces.

Paper Details

Date Published: 29 October 1981
PDF: 4 pages
Proc. SPIE 0289, 1981 Intl Conf on Fourier Transform Infrared Spectroscopy, (29 October 1981); doi: 10.1117/12.932153
Show Author Affiliations
A. A. Garrison, University of Tennessee (United States)
D. M. Hembree Jr., University of Tennessee (United States)
R. A. Yokley, University of Tennessee (United States)
R. A. Crocombe, University of Tennessee (United States)
G. Mamantov, University of Tennessee (United States)
E. L. Wehry, University of Tennessee (United States)

Published in SPIE Proceedings Vol. 0289:
1981 Intl Conf on Fourier Transform Infrared Spectroscopy
Hajime Sakai, Editor(s)

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